It’s really cool to discover J. Steven York. He’s written Battletech, Conan, X-Men and edited Star Trek anthologies, for just a start. You can find his website here: http://www.yorkwriters.com/ as well as his Amazon author page.
I do have to admit that I wasn’t familiar with her work outside of the Pern novels, so I found one of her hard SF stories from the mid-80s: Duty Calls, a story told from the POV of a human-brain piloted ship providing and escort mission for an alien infiltrating a hostile planet.
I like how the story assumes some things of the reader, like knowledge of C/Speed of Light travel, and uses the challenges of moving a massive fleet at the speed of light, including strategic planning. This story feels like the groundwork for a series, and it looks like there were at least a few other stories in the same universe.
Unfortunately, Richard Meredith died at 41 in 1979. I only found a few novels on Amazon. You can read more about him on Wikipedia:
Richard Carlton Meredith (October 21, 1937 – March 8, 1979), was an American writer, illustrator and graphic designer, best known as the author of science fiction short stories and novels including We All Died at Breakaway Station (which David Drake called “Military Science Fiction of the highest order,”) and The Timeliner Trilogy.